Locomotive frame construction



arch 1950 J. c. MARIS LOCCMOTIVE FRAME CONSTRUCTION Filed Aug. 1, 1945 Patented Mar. 14, 1950 LOCOMOTIVE FRAME CONSTRUCTION James C. Maris, Glenolden, Pa;, assignor to The Baldwin Locomotive Works, a corporation of Pennsylvania Application August 1, 1945, Serial No.- 608,260

2 Claims. (01. 105-172) The present invention relates to railway rolling stock and more particularly to a locomotive frame.

With the present day continuous demand for longer trains, heavier loads, and a minimum loss of time for refueling and the like, larger and more efiicient locomotives present many serious problems. While thesemaybe answered by larger power plants and increased fuel storage, the required added weight and length of the locomotive present difficulties incident to the manufacture, maintenance and safety of a long rigid frame such as is required in a locomotive for the above service.

It is an object of my invention to provide a novel sectional locomotive fram adapted to support a locomotive of extreme length. Another advantage of my improved frame is the ability to sectionally jack up the locomotive.

In the accompanying drawings, Fig. 1 represents a side elevation of a locomotive embodying one form of the present invention; Fig. 2 represents an enlarged detail in side elevation of the novel connecting means between the meeting ends of two frame sections; Fig. 3 represents a section on line 3-3 of Fig. 2; Fig. 4 represents a sectional perspective taken on line 44 of Fig. 2; and Fig. 5 represents a bottom plan of Fig. 2.

Referring to the drawings, a locomotive of the elongated unitary cab type is shown in Fig. 1 wherein the fuel unit Ill is at the front, followed in succession by the engineers cab H, the boiler and firebox unit l2, and the power generating unit l3. The foregoing units are mounted upon a main medially disposed frame extending lengthwise beneath the units and constructed and supported as will hereinafter be described.

In the present instance the frame comprises a front section I4, a rear section l5, and an intermediate section 16, this latter serving, as here shown, to support the main load and including a saddle ll upon which the boiler l 8 is seated. The two pairs of meeting ends l5 and I6, and I4 and I6, respectively are arranged for interfitting and interlocking relation in the following manner, the description, however, being directed to the connection between the sections l5 and IE; but it will be understood as applying to the like construction of the connection between the sections it and I6. Thus, the end of the section I5 is of increased depth as indicated by the upward taper l9, and the downward taper 20, this latter including the middle portion of the frame only, while at each side of this middle portion the bottom of the frame continues as indicated at 2|.

The end face of the section I5 is cut away to form an appreciable overhanging projection 22 to seat upon a projection 23 upon the end of the section l6 and which is complementally shaped to enter the space formed by the cut away part of the section l5. The upper and lower faces of the section l5 terminate respectively in step-shaped lips 24, 25 and 25. Likewise the upper and lower faces of the section l6 terminate respectively in stepshaped lips 21, 28 and 29. Thus, in meeting relation of the sections l5 and It, the opposite lips are in abutting relation while the projections 22 and 23 interfit in telescopic relation. It should also be noted that the depth of the section It is increased in a manner to correspond to the increased depth of the matching section l5.

In order to anchor the meeting ends of the sections [5 and I6 together, U-shaped laterally flanged straps 3! are provided to fit about each pair of abutting lips, and are contoured to form snug fitting couplings held in place by studs 32, or other fastening means, traversing the strap flanges and entering the respective sections.

For supporting the sectional frame with the load carried thereby, a plurality of trucks are provided including a front guiding truck 33, a power driven truck 34, an intermediate swivelling truck 35, a rear power driven truck 36, and a trailer truck 37. Thus, the fuel unit I4 is carried by a center pivot bearing 38 upon the power truck 34, while the forward extension of the latter is carried by the bolster 40 of the guiding truck 33. The boiler unit l2 and the generator unit l3 are supported by a center pivot bearing 4| between the section [6 and the power driven truck 36, the opposite end extensions of the latter being supported respectively by the bolster 42 of the intermediate truck 35, and the trailer truck 31.

From the foregoing it will be apparent that a novel sectional frame has been devised particularly suited as a supporting means for a locomotive of the type including as a part thereof a forward fuel unit, a cab, a boiler unit and a power generating unit. The novel jointing of the sections is such as to form a rigid unitary structure capable of sustaining the required heavy load but introducing a dismantling assembly whereby any section can be removed without an entire jacking up of all of the supported units, since the jacking operations can now be confined to the particular section to be repaired or replaced. Furthermore, because of the vertical and horizontal abutting relation of the metering ends of the two sections, the frame joints are of adequate strength to resist any stresses that may come upon them.

It will of course be understood that various changes in details of construction and arrangement of parts may be made by those skilled in the art without departing from the spirit of the invention as set forth in the appended claims.

I claim:

1. A locomotive frame comprising a plurality of sections, arranged in end to end relation, an upper endwise disposed projection on the meeting end of one section, a lower ,endwise disposed projection on the meeting end of the other section, said projections interfitting to formatwowertical abutting surfaces and ahorizontal intermediate abutting surface, said surfaces together forming substantially the complete joint between said sections, lips on the respective sections arranged in assembled section relation so'that:'a.1ip

on one section alines with a corresponding lip on -.the adjacent section, :and means straddling .alined pairs of lips for clamping said lips ,to-

:gether.

.2. A locomotiveframe comprising-a plurality of sections-arranged in end to end relation, Tan-lupper -endwise disposed projection on the meeting end of one section, a lower endwise disposed projection on the meeting-end of the other section, said projections inter-fitting to form two-yer- 4 tical abutting surfaces and a horizontal intermediate abutting surface, said surfaces together forming substantially the complete joint between said sections, lips on the respective sections arranged in assembled section relation so that a lip in one section alines with a, corresponding lip in the adjacent section, U-shaped members fitted about each pair of .alined lips, and ,means to anochorsaid members to therespective sections.

JAMES C. MARIS.

REFERENCES CITED The following references are of record in th file of this patent:

UNITED STATES PATENTS v:Numioer Name Date 905,271 Andrews Dec. 1, 1908 150061732 Downs Oct. 24, 1911 1,630,901 Muhlfed May 31, 1927 11 702252 :Driemeyer Feb. 19, 1929 i1,747,102 jBu'rkhardt Feb. 11,1930 1,759,675 Werst May 20,1930 133L806 Ennis Nov '1'7,';l931

' FOREIGN PATENTS Number Country Date 283,169 -Great JBritain Mar. 22, 1928 Certificate of Correction Patent N 0. 2,500,844 March 14, 1950 JAMES C. MARIS It is hereby certified that errors appear in the printed specification of the above numbered patent requiring correction as follows:

Column 2, line 54:, for the Word metering read meeting; column 4, line 9, for anochor read anchor;

and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 4th day of July, A. D. 1950.

[sun] THOMAS F. MURPHY,

Assistant Commissioner of Patents. 

